Application of ?wet? extrapolation method for activity standardisation of electron capture radionuclides

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00177016%3A_____%2F08%3A%230000291" target="_blank" >RIV/00177016:_____/08:#0000291 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Application of ?wet? extrapolation method for activity standardisation of electron capture radionuclides

Original language description

The activity of electron capture radionuclides is usually determined by 4pi(PC)-gamma coincidence counting. The corrections necessary for the final activity value calculation are obtained by an extrapolation method. Variation of the proportional counter(PC) detection efficiency can be achieved through different methods, e.g. by changing the self-absorption of the source using absorbing foils or by adding carrier. Another possibility is a ?wet? extrapolation method, which utilises an absorption change during the drying of a water droplet added onto the source surface. In this paper, slopes of extrapolation curves and resulting activity values obtained by different methods are compared for several radionuclides (54Mn, 139Ce, 88Y, 57Co). In some cases adigital coincidence system was used for the analysis of measured data. The ?wet? extrapolation, due to its very simple procedure, seems to be convenient for routine measurement and its accuracy is similar to the other methods.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

BG - Nuclear, atomic and molecular physics, accelerators

OECD FORD branch

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Project

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Continuities

R - Projekt Ramcoveho programu EK

Publication year

2008

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Applied Radiation and Isotopes

ISSN

0969-8043

e-ISSN

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Volume of the periodical

66

Issue of the periodical within the volume

6-7

Country of publishing house

GB - UNITED KINGDOM

Number of pages

6

Pages from-to

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UT code for WoS article

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EID of the result in the Scopus database

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